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Pipe-jacking construction process

A construction technology and pipe jacking engineering technology, applied in pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problems of pipeline jacking deviation from the predetermined path, pipeline placement deviation, etc., to improve stability , Improve the effect of using the effect

Active Publication Date: 2020-03-10
韶关市第一建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the pipe jacking construction process of the prior art, the pipeline is generally lowered to the pipe jacking foundation pit or the bottom track of the foundation pit by means of hoisting by a crane. Deviation from the planned path occurs during the progress

Method used

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  • Pipe-jacking construction process
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  • Pipe-jacking construction process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as figure 1 As shown, a pipe jacking construction process includes a calibration device 1. The calibration device 1 calibrates the pipeline. Compared with the prior art, the deviation of the pipeline arrangement causes the pipeline to deviate from the predetermined path during the jacking process. , this embodiment achieves the effect of ensuring that the pipeline advances along a predetermined path during the jacking process.

[0052] combine figure 1 and figure 2 , the calibration device 1 includes a base 11, a mounting base 12, a placement box 13 and a plaster block 14, the mounting base 12 is a ring-shaped design whose bottom is fixed to the base 11, and the placement box 13 is detachably fixed to the mounting base 12 The inner wall, and the side of the placement box 13 near the center of the mounting seat 12 is open, the plaster block 14 is placed in the placement box 13 and is detachably fixed with the placement box 13, and the end of the plaster block 14 ...

Embodiment 2

[0056] A pipe jacking engineering construction technique, the construction method comprising the following steps:

[0057] S1. The foundation pit is formed, and a bottom plate is arranged in the foundation pit;

[0058] S2. Measurement and positioning;

[0059] S3. Equipment installation:

[0060] Back installation: form the back wall, and place the back steel plate vertically on the ground in front of the back wall;

[0061] Guide rail installation: Two guide rails are laid in parallel below the pipe jacking path to limit the direction of pipe jacking;

[0062] Hydraulic jack bracket installation: Arrange the driving device on the foundation pit to drive the hydraulic jack bracket; connect the hydraulic jack bracket to the driving device with a high-pressure oil pipe, and place the jack bracket between two guide rails to fix it ;

[0063] Calibration device 1 installation: install the calibration device 1 in front of the pipeline path, place the base 11 of the calibration...

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Abstract

The invention relates to a pipe-jacking construction process, and belongs to the technical field of pipe-jacking construction. According to the technical scheme, the key point is that the pipe-jackingconstruction process adopts a calibration device, wherein the calibration device comprises a base station, a mounting base, a placing box and a gypsum block, the mounting base adopts a circular ringshaped design, bottom of which is fixedly connected to the base station; the placing box can be detachably and fixedly connected on the inner wall of the mounting base; one side, close to center of the mounting base, of the placing box is provided with an opening; the gypsum block is placed in the placing box and is detachably and fixedly connected to the placing box; and one end, close to the opening side of the placing box, of the gypsum block extends to the outer side of the placing box, so that a pipeline is ensured to forwards move according to a predetermined path in a jacking process.

Description

technical field [0001] The invention relates to the technical field of pipe jacking construction, in particular to a construction technology of pipe jacking engineering. Background technique [0002] With the development and construction of the economy, the number of water conservancy and hydropower projects in my country is increasing, and the related technologies have become more and more mature. Among the many construction technologies, the application of pipe jacking construction can significantly promote the economic benefits of the project. and can play a very important role in engineering construction. [0003] Pipe jacking construction is a non-excavation construction method, which is a pipeline burying construction technology without excavation or less excavation. Pipe jacking construction is to use the jacking force generated by jacking equipment in the foundation pit to overcome the friction between the pipeline and the surrounding soil. Push the pipe into the soi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L1/036F16L1/10
CPCF16L1/036F16L1/10
Inventor 邓曼宁唐川何东军范宇恒肖华
Owner 韶关市第一建筑工程有限公司